package com.work.utils;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
<<<<<<< HEAD
import java.io.IOException;
import java.io.OutputStream;
import java.util.Random;

public class CaptchaUtils {
    /**
     * 验证码图片的宽度
     */
    private  int width=160;
    /**
     * 验证码图片的宽度
     */
    private  int height=40;
    /**
     * 干扰线的数量
     */
    private  int lineCount=20;
    /**
     * 验证码
     */
    private  String  code=null;

    /**
     * 验证码图片上字符个数
     */
    private  int  codeCount=4;

    /**
     * 验证码图片Buffer
     */
    private BufferedImage buffImg = null;

    Random random = new Random();

    public CaptchaUtils(){
        createImageCode();
    }

    /**
     * 指定宽高
     * @param width
     * @param height
     */
    public CaptchaUtils(int width, int height){
        this.width=width;
        this.height=height;
        createImageCode();
    }

    /**
     * 指定宽高和干扰线的数量
     * @param width
     * @param height
     * @param lineCount
     */
    public CaptchaUtils(int width, int height, int lineCount){
        this.width=width;
        this.height=height;
        this.lineCount=lineCount;
        createImageCode();
    }

    /**
     * 指定宽高、验证码字符个数、干扰线数量
     * @param width
     * @param height
     * @param codeCount
     * @param lineCount
     */
    public CaptchaUtils(int width, int height, int codeCount, int lineCount){
        this.width=width;
        this.height=height;
        this.codeCount=codeCount;
        this.lineCount=lineCount;
        createImageCode();
    }

    /**
     * 指定宽高、验证码字符个数、干扰线数量、
     * @param width
     * @param height
     * @param codeCount
     * @param lineCount
     * @param code
     */
    public CaptchaUtils(int width, int height, int codeCount, int lineCount, String code){
        this.width=width;
        this.height=height;
        this.codeCount=codeCount;
        this.lineCount=lineCount;
        createImageCode(code);
    }

    /**
     * 生成验证码
     */
    private void createImageCode(){
        // 字体的宽度
        int fontWidth = width / codeCount;
        // 字体的高度
        int fontHeight = height - 5;
        // 偏移量
        int codeY = height - 8;

        // 图像buffer
        buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = buffImg.getGraphics();
        // 设置背景色
        g.setColor(getRandColor(200, 250));
        g.fillRect(0, 0, width, height);

        // 设置字体
        Font font = new Font("Fixedsys", Font.BOLD, fontHeight);
        g.setFont(font);

        // 设置干扰线
        setLine(g);

        // 添加噪点
        // 噪声率
        float yawpRate = 0.01f;
        int area = (int) (yawpRate * width * height);
        for (int i = 0; i < area; i++) {
            int x = random.nextInt(width);
            int y = random.nextInt(height);
            buffImg.setRGB(x, y, random.nextInt(255));
        }
        // 得到随机字符
        String str1 = randomStr(codeCount);
        this.code = str1;
        for (int i = 0; i < codeCount; i++) {
            String strRand = str1.substring(i, i + 1);
            g.setColor(getRandColor(1, 255));
            // a为要画出来的东西，x和y表示要画的东西最左侧字符的基线位于此图形上下文坐标系的 (x, y) 位置处
            g.drawString(strRand, i*fontWidth+3, codeY);
        }

    }
    /**
     * 生成指定字符图片
     */
    private void createImageCode(String code) {
        // 字体的宽度
        int fontWidth = width / codeCount;
        // 字体的高度
        int fontHeight = height - 5;
        int codeY = height - 8;

        // 图像buffer
        buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = buffImg.getGraphics();
        // 设置背景色
        g.setColor(getRandColor(200, 250));
        g.fillRect(0, 0, width, height);

        // 设置字体
        Font font = new Font("Fixedsys", Font.BOLD, fontHeight);
        g.setFont(font);

        // 设置干扰线
        setLine(g);

        // 添加噪点
        // 噪声率
        float yawpRate = 0.01f;
        int area = (int) (yawpRate * width * height);
        for (int i = 0; i < area; i++) {
            int x = random.nextInt(width);
            int y = random.nextInt(height);

            buffImg.setRGB(x, y, random.nextInt(255));
        }

        this.code = code;
        for (int i = 0; i < code.length(); i++) {
            String strRand = code.substring(i, i + 1);
            g.setColor(getRandColor(1, 255));
            // a为要画出来的东西，x和y表示要画的东西最左侧字符的基线位于此图形上下文坐标系的 (x, y) 位置处
            g.drawString(strRand, i*fontWidth+3, codeY);
        }

    }

    /**
     * 设置干扰线
     * @param g
     */
    private void setLine(Graphics g){
        for (int i = 0; i < lineCount; i++) {
            int xs = random.nextInt(width);
            int ys = random.nextInt(height);
            int xe = xs + random.nextInt(width);
            int ye = ys + random.nextInt(height);
            g.setColor(getRandColor(1, 255));
            g.drawLine(xs, ys, xe, ye);
        }

    }
    /**
     * 得到随机字符
     * @param n
     * @return
     */
    public String randomStr(int n) {
        String str1 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890";
        String str2 = "";
        int len = str1.length() - 1;
        double r;
        for (int i = 0; i < n; i++) {
            r = (Math.random()) * len;
            str2 = str2 + str1.charAt((int) r);
        }
        return str2;
    }

    /**
     * 得到随机颜色
     * @param fc
     * @param bc
     * @return
     */
    private Color getRandColor(int fc, int bc) {
        // 给定范围获得随机颜色
        if (fc > 255){
            fc = 255;
        }
        if (bc > 255){
            bc = 255;
        }
        int r = fc + random.nextInt(bc - fc);
        int g = fc + random.nextInt(bc - fc);
        int b = fc + random.nextInt(bc - fc);
        return new Color(r, g, b);
    }

    /**
     * 产生随机字体
     */
    private Font getFont(int size) {
        Random random = new Random();
        Font font[] = new Font[5];
        font[0] = new Font("Ravie", Font.PLAIN, size);
        font[1] = new Font("Antique Olive Compact", Font.PLAIN, size);
        font[2] = new Font("Fixedsys", Font.PLAIN, size);
        font[3] = new Font("Wide Latin", Font.PLAIN, size);
        font[4] = new Font("Gill Sans Ultra Bold", Font.PLAIN, size);
        return font[random.nextInt(5)];
    }


    /**
     * 扭曲方法
     * @param g
     * @param w1
     * @param h1
     * @param color
     */
    private void shear(Graphics g, int w1, int h1, Color color) {
        shearX(g, w1, h1, color);
        shearY(g, w1, h1, color);
    }

    private void shearX(Graphics g, int w1, int h1, Color color) {

        int period = random.nextInt(2);

        boolean borderGap = true;
        int frames = 1;
        int phase = random.nextInt(2);

        for (int i = 0; i < h1; i++) {
            double d = (double) (period >> 1)
                    * Math.sin((double) i / (double) period
                    + (6.2831853071795862D * (double) phase)
                    / (double) frames);
            g.copyArea(0, i, w1, 1, (int) d, 0);
            if (borderGap) {
                g.setColor(color);
                g.drawLine((int) d, i, 0, i);
                g.drawLine((int) d + w1, i, w1, i);
            }
        }

    }

    private void shearY(Graphics g, int w1, int h1, Color color) {

        int period = random.nextInt(40) + 10;

        boolean borderGap = true;
        int frames = 20;
        int phase = 7;
        for (int i = 0; i < w1; i++) {
            double d = (double) (period >> 1)
                    * Math.sin((double) i / (double) period
                    + (6.2831853071795862D * (double) phase)
                    / (double) frames);
            g.copyArea(i, 0, 1, h1, 0, (int) d);
            if (borderGap) {
                g.setColor(color);
                g.drawLine(i, (int) d, i, 0);
                g.drawLine(i, (int) d + h1, i, h1);
            }

        }

    }

    public void write(OutputStream sos) throws IOException {
        ImageIO.write(buffImg, "png", sos);
        sos.close();
    }

    public BufferedImage getBuffImg() {
        return buffImg;
    }

    public String getCode() {
        return code.toLowerCase();
=======
import java.io.*;
import java.util.Properties;
import java.util.Random;

/**
 * <p>Description: [验证码生成器]</p>
 */
public class CaptchaUtils {
    // 图片的宽度。
    private int width = 120;
    // 图片的高度。
    private int height = 40;
    // 验证码字符个数
    private int codeCount = 4;
    // 验证码干扰线数
    private int lineCount = 50;
    // 验证码
    private String code = null;
    // 验证码图片Buffer
    private BufferedImage buffImg = null;

    private char[] codeSequence = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'M', 'N', 'P', 'Q', 'R', 'S',
            'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '2', '3', '4', '5', '6', '7', '8', '9' };

    // 生成随机数
    private Random random = new Random();

    public CaptchaUtils() {
        this.createCode();
    }

    /**
     * 
     * @param width
     *            图片宽
     * @param height
     *            图片高
     */
    public CaptchaUtils(int width, int height) {
        this.width = width;
        this.height = height;
        this.createCode();
    }

    /**
     * 
     * @param width
     *            图片宽
     * @param height
     *            图片高
     * @param codeCount
     *            字符个数
     * @param lineCount
     *            干扰线条数
     */
    public CaptchaUtils(int width, int height, int codeCount, int lineCount) {
        this.width = width;
        this.height = height;
        this.codeCount = codeCount;
        this.lineCount = lineCount;
        this.createCode();
    }

    public void createCode() {
        int codeX = 0;
        int fontHeight = 0;
        fontHeight = height - 5;// 字体的高度
        codeX = width / (codeCount + 3);// 每个字符的宽度

        // 图像buffer
        buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D g = buffImg.createGraphics();

        // 将图像填充为白色
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, width, height);

        // 创建字体
        ImgFontByte imgFont = new ImgFontByte();
//      Font font = imgFont.getFont(fontHeight);
        Font font = getFont(fontHeight);
        g.setFont(font);

        // 绘制干扰线
        for (int i = 0; i < lineCount; i++) {
            int xs = getRandomNumber(width);
            int ys = getRandomNumber(height);
            int xe = xs + getRandomNumber(width / 8);
            int ye = ys + getRandomNumber(height / 8);
            g.setColor(getRandomColor());
            g.drawLine(xs, ys, xe, ye);
        }

        StringBuffer randomCode = new StringBuffer();
        // 随机产生验证码字符
        for (int i = 0; i < codeCount; i++) {
            String strRand = String.valueOf(codeSequence[random.nextInt(codeSequence.length)]);
            // 设置字体颜色
            g.setColor(getRandomColor());
            // 设置字体位置
            g.drawString(strRand, (i + 1) * codeX, getRandomNumber(height / 2) + 25);
            randomCode.append(strRand);
        }
        code = randomCode.toString();
    }

    /** 获取随机颜色 */
    private Color getRandomColor() {
        int r = getRandomNumber(255);
        int g = getRandomNumber(255);
        int b = getRandomNumber(255);
        return new Color(r, g, b);
    }

    /** 获取随机数 */
    private int getRandomNumber(int number) {
        return random.nextInt(number);
    }

    public void write(String path) throws IOException {
        OutputStream sos = new FileOutputStream(path);
        this.write(sos);
    }

    public void write(OutputStream sos) throws IOException {
        ImageIO.write(buffImg, "JPEG", sos);
        sos.close();
    }

    public BufferedImage getBuffImg() {
        return buffImg;
    }

    public String getCode() {
        return code;
    }

    /** 字体样式类 */
    class ImgFontByte {
        public Font getFont(int fontHeight) {
            try {
                Font baseFont = Font.createFont(Font.TRUETYPE_FONT,
                        new ByteArrayInputStream(hex2byte(getFontByteStr())));
                return baseFont.deriveFont(Font.PLAIN, fontHeight);
            } catch (Exception e) {
                return new Font("Arial", Font.PLAIN, fontHeight);
            }
        }

        private byte[] hex2byte(String str) {
            if (str == null)
                return null;
            str = str.trim();
            int len = str.length();
            if (len == 0 || len % 2 == 1)
                return null;

            byte[] b = new byte[len / 2];
            try {
                for (int i = 0; i < str.length(); i += 2) {
                    b[i / 2] = (byte) Integer.decode("0x" + str.substring(i, i + 2)).intValue();
                }
                return b;
            } catch (Exception e) {
                return null;
            }
        }

    }
    
    private String getFontByteStr() {
        Properties prop = new Properties();
        try {
            BufferedReader in = new BufferedReader(new FileReader("config.properties"));
            prop.load(in);
            String property = prop.getProperty("FontByteStr");
            in.close();
            return property;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
    
    private Font getFont(int size) {
        Random random = new Random();
        Font font[] = new Font[2];
        //font[0] = new Font("Ravie", Font.PLAIN, size);
        font[0] = new Font("Antique Olive Compact", Font.PLAIN, size);
        font[1] = new Font("Fixedsys", Font.PLAIN, size);
        int nextInt = random.nextInt(2);
        System.out.println(nextInt);
        return font[nextInt];
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    }
}